Today when I updated to 10.10.5 I noticed that all my mission control desktops were gone, except for my main one. I also noticed Apple decided I needed iBooks, Maps, and Photos in my dock. I do have a Time Machine backup and tried restoring the com.apple.dock Pref as well as the ~/Library/AppSupport/Dock database file. How can I restore my Desktops?! I had them all sorted with different wallpapers and set apps to open in different ones!